Demountable rim.



'J OQGRADY.

DEMUUNTABLE BWL APPLICATION FILED H1521. ESI?.

E SHEETSSHEET l.

2 swims-Mmm 2.

WBTN ESSES www W ATTORNEY manera.,

JOHN GRADY, OF BIRMINGHAM, ALABAMA.

DEMOUNTABLE nir/r.

To all 'whom it may concern:

Be it known that I, JOHN 0. GRADY, a citizen .of the' United States, residing at Birmingham, .in the county of Jelierson and State of Alabama, have invented new 4and .useful Improvements in Demountable Rims,

` ofwhich the following is a specification.

This invention relates to 'vehicle Wheels andesltveciallyto demountable rims thereor. i l

The vobject of the'present invention is to lprovide a-demountable rim of novel construction which, will enable a pneumatic or other tire to be attached thereto or removed Specification of Letters Patent.

Application led February 27, 1917. Serial No. 151,301.

therefrom with a minimum amount of timev orv labor.

lAnother object of the invention is to provide a demountable rim composed of interjlocking sections, said sections belngreadily disassembledto permit the removal of the tire and when `in their disassembled position will permit of their engagement with the rie'd by 'each of thesections and means carried by said engaging rim for locking the sections together, this sectional engaging and locking means providingmeans coperating with means carried by the felly of 'the wheel for locking theI rim' thereto and for preventing any independent rotary motion of the rim with respect to the wheel.

To this end the invention consists ofl a demountable rim comprising a pair of annu'- lar tire engaging sections, the said sections being provided with interlocking engaging elements, means for .locking said elements in their engaged position, the said interlocking means cooperating with means carried' bythe folly oi the. wheel 'for Apreventing independent rotarymovement ofthe rim and means for securing the said rim tothe wheel.

In the drawings Figure 1 is. a side elevation of a portion of a vehicle Wheel provided with a demountable, rim constructed in accordance with the invention; i'

' Fig.- 2 is a longitudinal vertical sectional view of the same.

`vention illustrated, the telly of the wheel is lllatentedlteb. 26. 19M.

Fig. 3 is an enlarged cross sectional viewthrough the felly and rim;

Fig. L is an inner plan view oi a portion in their engaged position.'

Fig. 5 is a similar-view with of the rim separated;

Fig. 6 is plan view of thefelly illustrating the means coperating with the sectional rim locking. means for preventing 1'0- tarymovement of the said rim;

Fig. 7 isla detailed perspectiveview of one of the looking washers or clamps carried by the folly. by means of .which the rim is the sections secured to the wheel; Fig. 8 is a cross sectional view of a'modilied form of rim illustratingthe'iange for closing the space between. the felly and rim, the said rim and i'elly being shown in engaged position; and

Fig. 9 is a view o the same separated, ln the practicalembodime'nt of the inindicated at 10,- the said fellyl being of any well known or desired construction. The demonntable rim. is shown at il and coni- Aprises a pair of annular sections l2 and 13. rlhe sections herein shown are provided upon their edges with means'indicated at M for engaging a' tiro oi2 the Vclencher type,"but it is ofcourse understood that the rim may be formed to engage `Jrires of other formation, such as Vthe straight side tire., Secured upon. the inner periphery of the section i2 are lugs l5, the said lugs being spaced around the riml any desired distance apart and. being formed with laterally projecting tongues 1G, the side edges mi these tongnes being preferably inclined as shown; The rim section i3 is provided with spaced lugs 1'?, there being a pair of these-lugs for each or the tongues it. lll enposed edges of these lugs 12' ine-l" shown, for the purpose oi? providing tap .a grooves 18, for engagement with the to gue it the said tongue being similarly tapered.' VThe opposed edges oi the legi? are also inclined to conform te the inclination or the tr 16 and to provide a dove-'tal therewith. A rotatable loe is provided for' each of the or; said elementbeing swiveled 55y of a rim showing the interlocking elements 13 and being adapted, to extend within the said groove for the pur-pose of engaging a ynotch 20 formed in the tongue 16. The

rotatable locking element 19 is preferably circular in form and is adapted to be seated Within a socket formed in one of the lugs 18 and iush with the top thereof. This element 19 is provided with a straight face 21, which, when turned in the proper posi- 4When the rim sections are in their assembled position, these interlocking elements form a substantially rectangular series of spaced lugs upon the inner periphery of the rim, and when so formed are adapted to engage sockets 23 formed upon the outer surface of the Wheelfelly. In order to provide these sockets, the felly 10 is provided with spaced .lugs 24, and when these lugs are engaged with the rectangular locking elements, they will prevent any rotary movement of the rim with respect to the Wheel.

The felly 10 is provided with transverse openings 25, located in juxtaposition to each of the sockets 23 and these openings are adapted to receive bolts 26 provided uponv one end With aclamping member 27 and being threaded upon their opposite ends for the reception of nuts 28. A removable clamping member 29 is mounted upon the bolts .26 between the felly and the nuts 28 and is adapted to cooperate with 'the clamping member 27 for the purposeof securing the rim tothe Wheel. The removable clamping members 29 are each provided With latmoved therefrom, the rim being preferably.

laid flat with the section 12 uppermost. The new tire is then positioned upon the section 13 and the section 12 adjusted and secured thereon, the rim then being ready for p'osiltioning upon the Wheel.

It is believed that the foregoing description when taken in connection with the accompanying drawings will be sulieient for a clear understanding of the construction, operation and advantages of the invention.

Having thus described the invention, what is claimed is The combination With a vehicle Wheel, of a demountable rim thereforpsaid rim comprising a pair of annular tire engaging sections, a plurality of laterally extending spaced beveled edge tongues secured to the inner periphery of one of said sections, said tongues being raised Within the diameter of said sections, a plurality of spaced lugs arranged in pairs and carried by the other section, said lugs forming grooves for the reception of tongues in the first mentioned section and having their opposite edges beveled to conform to the beveled edges of said tongues and a rotatable element mounted within one lug of each pair of lu s and adapted to extend Within a notch 'ormed in each of the laterally extending tongues to 'prevent accidental disengagement of the tongues.

In testimony whereof l aiiix my signature.

- JOHN O. GRADY. 

